React Native Mobile App developer

@Engumer480

xpert React Native App Dev – Pay Only If Happy! Enjoy a 20% discount on your project. I build fast, sleek apps tailored to your vision. Zero upfront cost – you pay only when 100% satisfied. Let’s turn your idea into a stunning mobile app! DM me today!

@arbu1499

Hi, I’m skilled in React Native and Firebase, with experience in upgrading codebases, real-time communication (Agora, WebRTC), push notifications, and payment API integration (Razorpay). I’m eager to collaborate and share workload to deliver a seamless, scalable app experience. Regards, Arbaz F

@raminde

Have over 18 years of experience in data mining/ Web scrapping/ Scraping Bots/ Chrome/Opera Extensions I have done it all. Tell us your source and we will put it in excel for you, Or we can even give you filtered results as per your requirement, In the format you want. You can also ask for data into a particular format - Excel, Json, Mysql, Databases, XMLs, you name them. Further Can help you with integrating it with ur databases, Can create json outputs. We are not only good with scraping but also with the tools that u may need after that. We can help you build you softwares round the data we have 99% Data Accuracy. We have Duplicate finder. etc., We can help with Statistics on the data We can help with creating Api's front the data We can create Softwares to manage that data We can build Sites round the data We can do the project for u. We have more than 15 years of experience in website development / software development - PHP, Laravel, React, React Native, API integration, Web scraping, Data Analytics, Server management, App development IOS, Trading algorithm etc Webscrapping - We are amongst the top notch web scrappers with 99% acuracy Expertise in API integrations - payments, data apis etc., Expertise in various kinds of data mining and management Expertise in Website speed analytics

@decipherzone111

Hello there, I can contribute as a React Native developer to build and maintain your real-time communication app using Firebase and MongoDB. Experienced in upgrading React Native codebases, integrating Firebase services, implementing in-app and background call features with Agora or similar APIs, managing push notifications, and handling payment integrations like Razorpay. Ready to collaborate closely for efficient delivery and a seamless user experience. Let’s discuss further. Thanks.

@AhsanDevPro

Dear Hiring Team, I am writing to express my strong interest in the Mobile App Developer Intern position at your company. As a passionate developer with expertise in React Native and Firebase, I am excited about the opportunity to contribute to your real-time communication platform and work alongside your international team. Why I'm the Right Fit Technical Expertise React Native Development**: Extensive experience building cross-platform mobile applications Firebase Integration**: Proficient in Firebase services including Firestore, Authentication, FCM, and Cloud Functions Real-time Communications**: Familiar with WebRTC protocols and third-party APIs like Agora and Twilio State Management**: Strong understanding of app state management and keeping users active/online Push Notifications**: Experience handling notifications in all app states (foreground, background, killed) Relevant Experience Next Steps: I would welcome the opportunity to discuss how my skills and experience align with your project requirements. I'm available for a technical discussion or code review at your convenience. Thank you for considering my application. I look forward to contributing to your innovative platform and working with your international team.

@bhartimalu

Hi, I’m an experienced React Native developer with expertise in building high-performance cross-platform apps for Android and iOS. I can assist you with: • New feature development & UI implementation • API integration (REST/GraphQL/Firebase) • State management (Redux, Context API, MobX) • Bug fixing and performance optimization • Push notifications & background services • App Store & Play Store deployment I’ve delivered apps in domains like eCommerce, booking, social media, and on-demand services, ensuring clean code and smooth UX. Let’s connect to review your requirements and get started. Regards, Bharti M

@matthewclarke22

I have extensive experience in mobile app development using React Native and integrating Firebase for seamless user experiences. While I am new to Freelancer, I have a proven track record of delivering successful projects off-site. I look forward to discussing your project needs further and working together to create a clean, professional, and user-friendly mobile app. Regards, MR MATTHEW B CLARKE

@yavBPO

I am a perfect fit for your project as a Mobile App Developer Intern with expertise in React Native and Firebase. I understand the need to upgrade to the latest stable version, integrate Firebase and MongoDB, and implement seamless in-app call features. While I am new to freelancer, I have tons of experience and have done other projects off-site. I would love to chat more about your project! Regards, Yavish Sukdeo

@Sadaqah

"I am a perfect fit for your project as a Mobile App Developer experienced in React Native and Firebase integration. I specialize in upgrading codebases, integrating Firebase for seamless functionalities, and managing push notifications. While I am new to freelancer.com, I have tons of experience and have done other projects off site. I would love to chat more about your project! Regards, Sadaqah"

@Ludwig240

"If you don't like it, you don't pay and walk away with a free consultation. I am a perfect fit for your project as a Mobile App Developer, well-versed in React Native and Firebase. My expertise aligns with your need for seamless real-time communication solutions, Firebase integration, and app scalability. While I am new to freelancer, I have tons of experience and have completed similar projects off site. I would love to chat more about your project! The worst that can happen is you walk away with a free consultation. Regards, L.J. MOMSEN"

@bjorkb

Drawing on extensive experience and a results-driven approach, my team and I are well-positioned to deliver exceptional outcomes for your project. We understand the need for seamless connectivity, integrated Firebase features, smooth user interactions, and a professional mobile app experience. While I am new to freelancer, I have tons of experience and have done other projects off-site. We offer expertise in React Native, Firebase integration, real-time communication protocols, and push notifications. Our commitment to excellence and efficient collaboration ensures successful project delivery. Whenever you have time, I would love to chat more about your project! Regards, Bjork Bronkhorst

@CarlaV1205

This is exactly the work I love, and you only pay once you are 100% satisfied. I fully understand the need for seamless user-friendly communication features using React Native and Firebase for your mobile app project. I bring extensive experience in developing React Native applications with Firebase integration and real-time communication functionalities. Although new to Freelancer, my quality of work is exceptional, as seen in my off-platform projects. Let’s connect to explore how I can help bring your project to life. Regards, Carla V

@Jancoj

"I'm offering high-quality work at a discounted rate as I build my reputation—your project will get top-tier attention without the high price tag. Your need for seamless in-app communication and Firebase integration aligns perfectly with my React Native and Firebase expertise. While I am new to freelancer, I have tons of experience and have done other projects off site. Your success is my priority. I’m ready to bring your vision to life. Let’s make it happen. Regards, Janco Janse van Rensburg"

@NextSpark

I am a perfect fit for your project, focusing on upgrading React Native codebase to the latest version, seamlessly integrating Firebase for robust backend features, and ensuring real-time communication experience. While I am new to freelancer, I have tons of experience in developing mobile apps. I would love to chat more about your project! Regards, Wiandru van Rooyen

@BalkrushnaTech

Hi there, Are you looking for a skilled React Native + Firebase developer to build and enhance a real-time communication platform with robust call functionalities, push notifications, and a scalable backend? I can help deliver a seamless, high-performance app with in-app and out-of-app calling, payment integration, and a powerful admin panel. With strong experience in React Native, Firebase (Firestore, Auth, FCM, Cloud Functions), WebRTC-based solutions, and third-party APIs like Agora/Twilio, I can implement real-time audio/video calling, ensure active user states, and integrate secure payment workflows. I’ve worked on similar projects requiring push notifications across app states, backend migrations, and real-time data synchronization. Let’s connect to discuss your exact requirements and how we can deliver a smooth, engaging experience for your users. I’m confident I can collaborate effectively with your developer in Nigeria for timely delivery. Best Regards, Dimple Portfolio: https://www.freelancer.com/u/BalkrushnaTech

@RinkuAppDevPro

Dear Client, I read the requirement and understand you need a skilled Mobile App Developer with strong expertise in React Native and Firebase. I have over 5+ years of experience building and upgrading mobile apps, integrating real time features, and working with third party APIs for audio video calls, push notifications, and payment systems. I have successfully handled similar projects delivering high quality and scalable solutions. My expertise includes upgrading React Native versions, Firebase integration for authentication and cloud functions, migrating backends to MongoDB, and implementing advanced push notifications and calling features using APIs like Agora. I can work collaboratively with your team member to ensure smooth project delivery and excellent user experience. Contact me and discuss project and start. Thanks, Rinku Sharma

@technext96

Hi, I’m a React Native expert with 3+ years of experience building scalable, real-time mobile applications powered by Firebase and third-party communication APIs. I’ve worked on upgrading legacy React Native projects, implementing advanced calling features, and integrating secure payment workflows, ensuring both performance and reliability. From your description, I understand you need an upgrade from RN 0.16 to the latest version, seamless in-app and out-of-app calling, Firebase-to-MongoDB migration, robust push notifications, and payment integration — all while collaborating closely with a remote teammate to meet tight timelines. Here’s my approach: Upgrade the RN codebase with minimal disruption, ensuring all dependencies are updated. Integrate Firebase services (Auth, Firestore, Cloud Functions, FCM) and migrate backend to MongoDB. Implement in-app/out-of-app calls using Agora/GetStream with background connectivity. Set up push notifications for calls & general updates in all app states. Integrate Razorpay for secure, seamless transactions and update the admin panel with KPIs & call logs. Why work with me: Proven experience with Firebase, WebRTC, Agora, and payment gateway APIs. Skilled in complex RN upgrades and backend migrations. Strong remote collaboration experience across time zones. Let’s connect to align on features and timelines so we can deliver a smooth, high-performance communication app.

@techwithnomi

Hi,For the real-time calling feature, would you prefer we use a dedicated service like Agora for both audio/video calls from the start, or should we first build the in-app call flow with Firebase and later extend it to cross-app calls with an external API? I have 5+ years of experience in different technological stacks and ensure quality work. Kindly ignore the bid price once. If you'd like to see my portfolio or previous projects, let me know. Kind Regards, Nouman

@EchoHaven

"I see a great alignment between the project needs and my capabilities! I understand the need for seamless cross-app call functionalities and push notifications to keep users engaged. With expertise in React Native, Firebase, and integrating APIs like Agora, I can upgrade the codebase, implement in-app calls, and ensure seamless user interactions. I may be new to Freelancer, but I have a strong background and a proven track record with projects I've completed off-platform. I'd really love to hear more about your project! I'm happy to offer a free initial consultation to help get things started and see how I can best support your goals. Kind Regards, Juan K"